Front main seal leaking after install new crank pulley

[chang2182]

I just got an aluminum pulley set which I installed over the weekend. Everything seem fine until I started the car. Oil started leaking all over the place. I was coming from behind the crankshaft pulley. So I figured the front main oil seal is leaking. So I ordered a new one, which I had to wait a few hours for, so I took off all the belts and pulled the crankshaft pulley out. took off the front oil seal and found that the aluminum crank pulley has a smaller rear shaft than the stock which cause the oil seal to have too much play. When I got the new one it was much better than the old and more snug so I installed it. Got the car running again and (yeah) no oil. I took it out for a short spin around the block (nothing too fast) and when I got back home there was some oil that leaked out of the front oil seal again.

Does anyone know what I can do or if someone makes custom oil seals that I can use to stop this leak?

Any info or workaround would help a lot. Thanks

Forgot to give the make and model of the car. 95 240sx ka24de motor.

[onosqv]

If it was installed correctly, there should be no leakage - you do not want to mess w/ or mod the seal...

My only guess would be you bought a no name pulley - what brand is it anyway? - if it's not unorthodox or at least asp, then it is most likely the pulley.

I installed an unorthodox pulley (replaced the seal at the same time) on my sohc and there were not any leaks while I had it. No problems from unorthodox and asp pulleys on this forum as well.

[chang2182]

it a obx underdrive pulley. I think I might just go with an unorthodox pulley if there's nothing I can do to stop this leaking.

[spank044]

Speedy sleeve or kwik sleeve it.

TIMKEN Part # KWK99181

$20 at your local auto parts store.

http://www.timken.com/en-us/pr....aspx

[chang2182]

Cool... I've never seen this before. I've give it a try. Thanks spank.